We are a professional honing stome supplier, we can do different shape. oil stone, sharpening stone, honing stone

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Established in 1997, Yantai Qonly Honing Application Co., Ltd. is a professional manufacturer of powerful honing stone.With devoting to the comprehensive research for honing technology for many years, our products are widely used in honing for inner bore of circle tubular products, such as engineering hydraulic cylinder, cylinder pump in oil fields, coal mine hydraulic prop, the engine liner, m...View More